1. Department of Radiology, Weill Cornell Medical College, New York, NY, USA.
2. Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
3. Department of Biomedical Engineering, University at Buffalo, The State University of New York, New York, NY, USA.
4. Department of Radiology, Jinan Maternity and Child Care Hospital, Jinan, Shandong, China.
5. Department of Clinical Laboratory, Jinan Maternity and Child Care Hospital, Jinan, Shandong, China.
6. Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.